OpenAI Codex

Freemium

OpenAI's coding agent; the open-source Codex CLI is a lightweight agent that runs in your terminal.

Terminal-nativeAgent mode
Use case
AI coding agents
Pricing tier
Freemium
Pricing note
OpenAI's pricing page says Codex is included in ChatGPT Free, Go, Plus, Pro, Business, Edu and Enterprise plans.
Skill level*
Intermediate
License
Apache-2.0 (Codex CLI)
Added
2026-10-15
Sources checked

* Skill level and vibe badges are our own editorial labels. Pricing and plans change often; always confirm on the official site. Last checked 2026-10-15.

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